对压裂裂缝监测结果的质疑及井网参数的改进  

Query on Fracture Monitoring Results and Improvement of Well Pattern Parameters

作　　者：贾自力 石彬 刘芳娜 张军科 周红燕 付晨阳 JIA Zi-li;SHI Bin;LIU Fang-na;ZHANG Jun-ke;ZHOU Hong-yan;FU Chen-yang(Research Institute of Shaanxi Yanchang Oil(Group)Limited Liability Company,Xi’an 710075,China;Shaanxi Province Ultra-low Permeability Oil and Gas Field Exploration and Development Engineering Technology Research Center,Xi’an 710075,China)

机构地区：[1]陕西延长石油(集团)有限责任公司研究院,西安710075 [2]陕西省特低渗透油气田勘探与开发工程技术研究中心,西安710075

出　　处：《科学技术与工程》2022年第30期13249-13257,共9页Science Technology and Engineering

基　　金：陕西省科技统筹创新工程计划(2016KTCL01-12)。

摘　　要：作为人工压裂缝监测的一种有效手段,微地震监测技术能够定量表征压裂裂缝的方位、缝高、缝长、缝宽,为水平井的井网参数设计和分段压裂参数的设计提供了有力的技术支撑。但是在实际应用过程中,存在着大量微地震解释结果与矿场分析结果相矛盾的情况,从矿场压裂施工曲线特征、压裂施工井口返液情况、重复压裂效果、水平井注采反应特征等方面与微地震定量解释结果进行对比分析,指出了缝高、缝长、缝宽等参数量化解释结果存在明显偏大的倾向,讨论了量化结果偏大产生的原因,提出了进一步对水平井井网和分段压裂参数进行优化的方向,优化后的实践结果验证了优化方向的正确性,参数优化后也提高了储量动用程度和采收率。As an effective means of artificial fracture monitoring,the orientation,height,length and width of fracturing fractures can be quantitatively characterized by microseismic monitoring technology which provides a strong technical support for the design of well pattern parameters and segmented fracturing parameters of horizontal wells.However,in the process of practical application,there are a large number of contradictions between microseismic interpretation results and the field analysis results.The characteristics of field fracturing operation curve,wellhead fluid return during fracturing operation,refracturing effect and injection production characteristics of horizontal wells are compared with the quantitative interpretation results of microseismic.The obviously too large quantitative interpretation results of parameters such as fracture height,fracture length and fracture width are pointed out.The causes of large quantitative results are discussed,and the direction of further optimization of horizontal well pattern and staged fracturing parameters are put forward.The correctness of the optimization direction is verified by the optimized practice results,and after parameter optimization,the production degree and recovery are also improved.

关 键 词：优化方向 微地震压裂裂缝参数量化解释 水平井井网参数设计 矿场分析结果及准确性对比分析 

分 类 号：TE324[石油与天然气工程—油气田开发工程]